Q.A ball is held in the position shown with string of length 1 m just taut and then...

Q.A ball is held in the position shown with string of length 1 m just taut and then projected horizontally with a velocity of 3 m/s. If the string becomes taut again when it is vertical, angle `theta` is given by:

The ball is held in position as shown in the attached image with string of length 1 m just taut and then projected horizontally with a velocity of 3 m/s.

Let the angle made by the string with the vertical with it is projected be `theta` . The height of the ball (with reference to a point 1 m below where the string is attached) is `1*cos theta` . The time taken by the ball to drop by `1 - cos theta` is the same as that taken by it to travel a distance `1*sin theta` .